1396620975 has 48 divisors (see below), whose sum is σ = 2460833568. Its totient is φ = 696483840.

The previous prime is 1396620961. The next prime is 1396620983. The reversal of 1396620975 is 5790266931.

It is not a de Polignac number, because 1396620975 - 2¹³ = 1396612783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196687 + ... + 203663.

It is an arithmetic number, because the mean of its divisors is an integer number (51267366).

Almost surely, 2^1396620975 is an apocalyptic number.

1396620975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1396620975 is a deficient number, since it is larger than the sum of its proper divisors (1064212593).

1396620975 is a wasteful number, since it uses less digits than its factorization.

1396620975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 7159 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 1396620975 is about 37371.3924680363. The cubic root of 1396620975 is about 1117.7881984690.

The spelling of 1396620975 in words is "one billion, three hundred ninety-six million, six hundred twenty thousand, nine hundred seventy-five".